Engine exhaust cleaner and muffler



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INVENTOR. CAYETANO AGUAS 7% ATTORNEY United States Patent" 3,147,097ENGINE EXHAUST CLEANER AND MUFFLER Cayetano Aguas, 1425 Hillcrest Ave.,Pasadena, Calif. Filed Apr. 9, 1962, Ser. No. 185,908 2 Claims. (Cl.55-276) This invention relates to an engine exhaust cleaner and mufller,and an object of my invention is to provide a device through whichexhaust gases and oil fumes of an internal combustion engine pass forvthe purpose of removing certain liquids, solids, and gases from theengine exhaust, so that the accumulated exhaust gases in the atmospherewill 'be less injurious to animal and plant life.

An object of my invention is to provide a novel exhaust cleaner andmuifier which is incorporated in the exhaust pipe of an internalcombustion engine, so that all of the exhaust gases from the engine passthrough the cleaner and through various filters and dispersing devicesso that various solids, gases, and hydrocarbon liquids will be removedfrom the exhaust gas before that gas passes into the atmosphere.

Another object of my invention is to provide a novel exhaust cleaner andmufiler of the character stated, which can be mounted back of themufller of the internal combustion engine so that all of the exhaustgases will flow therethrough; said exhaust gases being compelled to passthrough a filter medium, as well as a gravel and Wire screen disperserbefore the gases can pass into the atmosphere.

Still another object of my invention is to provide a novel exhaustcleaner and mufiler which is simple in construction, inexpensive tomanufacture, and effective in operation.

Other objects, advantages and features of invention may appear from theaccompanying drawing, the subjoined detailed description and theappended claims.

In the drawing:

FIGURE 1 is a perspective view of my engine exhaust cleaner and mufller.

FIGURE 2 is a longitudinal sectional view taken on line 2-2 of FIGURE 1.

FIGURE 3 is a transverse sectional view taken on line 3-3 of FIGURE 1.

FIGURE 4 is a bottom plan view of my engine exhaust cleaner and muflier.

FIGURE 5 is an enlarged sectional view taken on line 5-5 of FIGURE 3.

Referring more particularly to the drawing, the numeral 1 indicates anelongated housing formed of a suitable impervious metal. One end of thishousing is inclosed by a cover 2 which is fixedly secured to the end ofthe housing by crimping, welding, or other suitable means. An exhaustpipe 3 extends through the cover 2 and thence longitudinally into thehousing 1. A plurality of outlet holes 4 are formed in the side of thepipe 3 and these holes permit exhaust gases, fumes, and the like, topass out of the pipe and into the housing 1, as will be subsequentlydescribed. The inner end of the pipe 3 is sealed or closed, as shown at5, so that all of the gases must pass out of the side of the pipe 3 andthroughout its length within the housing 1. A pair of pipes 6 and 7extend into the pipe 3 on the outside of the housing 1, and one of thesepipes may extend from the crankcase of the engine to conduct oil fumesto the cleaner, and the other pipe may be used to flow water through thehousing 1 for the purpose of removing accumulated solids within thehousing from time to time. An exhaust hole 8 is provided adjacent oneend of the housing 1, and exhaust gases flow through this hole aftertraversing the various cleaning units, as will be subsequentlydescribed. A cap 9 closes the end of the housing 1 opposite the Thesleeve 10 is formed of wire mesh or woven metal and is sufiicientlyrigid to be self-supporting. At, one end of the housing 1 a packing 11is provided of considerable thickness, and likewise a second packing 12is provided at the other end of the housing. The sleeve 10 butts againstbothpackings 11 and- 12, and when the cleaner is assembled the packings11 and 12 will be compressed against the ends of the sleeve 10, thussealing both ends of the sleeve. A lining 13, formed of Fiberglas, isfitted within the sleeve 10 and extends the entire length of thissleeve. This lining is loosely woven so that the exhaust gases canreadily pass therethrough, but will be filtered by the action of theFiberglas to remove solids and certain liquids from the exhaust gases.

Asecond sleeve 14, also formed of wire mesh or woven metal, is spacedinwardly from the sleeve 10, and is also spaced from the pipe 3 toprovide a clear space 15 around the pipe 3 into which exhaust gases canfreely pass unimpeded and unrestricted. On the outside of the sleeve 14I provide a lining 16, which is also formed of Fiberglas and extends theentire length of this sleeve. The Fiberglas lining 16 is also looselywoven so as to permit exhaust gases to pass therethrough, but to alsoact as a filter to entrap entrained solids and liquids in the exhaustgas. The space 17 between the sleeves 10 and 14 is filled with washedgravel and coconut charcoal, as indicated at 18, to thus provide afilter strip running the entire length of the housing 1, and which willeffectively entrap solids and liquids which might be entrained in theexhaust gas.

The exhaust gases, when moving out of the holes 4 in the pipe 3, canpass into the open space 15 and thence will be filtered through thelining 16, the gravel bed 18, and finally the Fiberglas lining 13 beforepassing out to the atmosphere through the hole 8. My exhaust cleanerwill thus not only remove all noxious solids and liquids from theexhaust gas, but will also act as a mufiler since the sleeves 10 and 14,as well as the linings 13 and 16, and the gravel bed 18, will act asbafile or mufiling elements.

Having described my invention, I claim:

1. An engine exhaust filter and mufiler consisting of an elongatedhousing,

a pipe extending into the housing and substantially the length of saidhousing, the end of said pipe within the housing being completelysealed,

said pipe having holes throughout the length thereof and arranged withinthe housing,

said housing having an outlet hole therein arranged adjacent one endthereof,

a sleeve formed of metallic wire mesh, said sleeve extending the lengthof and Within said housing, said sleeve surrounding the pipe and spacedradially therefrom,

means sealing both ends of the sleeve,

a Fiberglas lining positioned within said sleeve and extending thelength of said sleeve within the housing,

a second sleeve extending the length of and within said housing and saidsleeve and spaced radially from the first named sleeve and from saidpipe, said second sleeve being formed of metal wire mesh, said meanssealing the first named sleeve, also sealing the ends of the secondsleeve,

a Fiberglas lining arranged on the outside of the second sleeve andextending the length thereof within the housing,

a filtering means arranged between said sleeves and extending the lengthof said housing and within the housing,

said sleeve, Fiberglas lining, second sleeve and filtering means allarranged in surrounding relationship to said pipe and spaced radiallyfrom each other.

2. An engine exhaust filter and muifier consisting of an elongatedhousing,

a pipe extending into the housing and substantially the length of saidhousing, the end of said pipe within the housing being completelysealed,

said pipe having holes throughout the length thereof and arranged withinthe housing,

said housing having an outlet hole therein arranged adjacent one endthereof,

a sleeve formed of metallic Wire mesh, said sleeve extending the lengthof and within said housing, said sleeve surrounding the pipe and spacedradially therefrom,

means sealing both ends of the sleeve,

a Fiberglas lining positioned within said sleeve and extending thelength of said sleeve and within the housing,

a second sleeve extending the length of and Within said housing and saidsleeve and spaced radially from the first named sleeve and from saidpipe, said second sleeve being formed of metal wire mesh, said meanssealing the first named sleeve, also sealing the ends of the secondsleeve, j

a Fiberglas lining arranged on the outside of the second sleeve andextending the length thereof within the housing,

a gravel filter pack arranged between said sleeves and extending thelength of said housing, said gravel pack being positioned in the spacebetween the first named and the second sleeve and within the housing,said sleeve, Fiberglas lining, second sleeve and filtering means allarranged in surrounding relationship to said pipe and spaced radiallyfrom each other.

References Cited in the file of this patent UNITED STATES PATENTS

1. AN ENGINE EXHAUST FILTER AND MUFFLER CONSISTING OF AN ELONGATEDHOUSING, A PIPE EXTENDING INTO THE HOUSING AND SUBSTANTIALLY THE LENGTHOF SAID HOUSING, THE END OF SAID PIPE WITHIN THE HOUSING BEINGCOMPLETELY SEALED, SAID PIPE HAVING HOLES THROUGHOUT THE LENGTH THEREOFAND ARRANGED WITHIN THE HOUSING, SAID HOUSING HAVING AN OUTLET HOLETHEREIN ARRANGED ADJACENT ONE END THEREOF, A SLEEVE FORMED OF METALLICWIRE MESH, SAID SLEEVE EXTENDING THE LENGTH OF AND WITHIN SAID HOUSING,SAID SLEEVE SURROUNDING THE PIPE AND SPACED RADIALLY THEREFROM, MEANSSEALING BOTH ENDS OF THE SLEEVE, A FIBERGLAS LINING POSITIONED WITHINSAID SLEEVE AND EXTENDING THE LENGTH OF SAID SLEEVE WITHIN THE HOUSING,A SECOND SLEEVE EXTENDING THE LENGTH OF AND WITHIN SAID HOUSING AND SAIDSLEEVE AND SPACED RADIALLY FROM THE FIRST NAMED SLEEVE AND FROM SAIDPIPE, SAID SECOND SLEEVE BEING FORMED OF METAL WIRE MESH, SAID MEANSSEALING THE FIRST NAMED SLEEVE, ALSO SEALING THE ENDS OF THE SECONDSLEEVE, A FIBERGLAS LINING ARRANGED ON THE OUTSIDE OF THE SECOND SLEEVEAND EXTENDING THE LENGTH THEREOF WITHIN THE HOUSING, A FILTERING MEANSARRANGED BETWEEN SAID SLEEVES AND EXTENDING THE LENGTH OF SAID HOUSINGAND WITHIN THE HOUSING, SAID SLEEVE, FIBERGLAS LINING, SECOND SLEEVE ANDFILTERING MEANS ALL ARRANGED IN SURROUNDING RELATIONSHIP TO SAID PIPEAND SPACED RADIALLY FROM EACH OTHER.